Hi, I'm Dr. Brooks Tiller. Today, I'm going to show you a 20 minute exercise routine. In these 20 minutes, we're only going to be doing two exercises. We're going to do those back to back, 20 seconds a piece and then, we'll have 20 seconds of rest. We're going to do 20 rounds of this. It's going to get our heart going, it's going to get our muscles worked and we're going to really burn off some fat here. We're going to begin with a reverse lunge. the reverse lunge, we're going to stand on one foot. We're going to take the opposite foot and reach back, bending the front knee. Really going to use those glutes and the hip stabilizers to reach back and then, shoot us back up into a standing position. The second exercise we're going to use is the mountain climber. We're going to begin in a push-up position, shoulder, hip, knee, ankle in a straight line. The hands are going to be directly beneath the shoulders. From here we're going to run, we're going to bring our knees up to our elbows and then, place them back in a push-up position. We're going to each exercise for 20 seconds a piece. And then, we'll rest for 20 seconds. For a total of 20 seconds, that's going to make for 20 minutes of exercise.